Summary
Latest filing:
David S. Buzby is Director of STEM, INC. (STEM). 6 SEC Form 4 filings on record going back to 2025, most recently on 12 August 2026.
Recent Transactions
5Every recent SEC Form 4 transaction David S. Buzby has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies David S. Buzby files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Matthew Tappin - $198K of STEM open-market activity in the last 12 months
- Arun Narayanan - $73K of STEM open-market activity in the last 12 months
- Rahul Shukla - $60K of STEM open-market activity in the last 12 months
- Michael James Carlson - $34K of STEM open-market activity in the last 12 months
- Saul R. Laureles - $19K of STEM open-market activity in the last 12 months
- Brian Musfeldt - $6K of STEM open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is David S. Buzby?
David S. Buzby is a corporate insider, tracked as Director of STEM, INC. (STEM). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David S. Buzby submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of David S. Buzby's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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